======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '272'
                                          'artist'  'Ambulance Ltd'
                                     'text_people'  'M. Congleton'
                                         'release'  'LP'
                                           'title'  'Michigan'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie rock', 'lovedbygdchill', 'indie', 'rock', 'indie pop', 'alternative']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '12'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '90.776'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Cleaned by TuneUp!'
'COMM:ID3v1 Comment:XXX'                            'Cleaned by TuneUp!'
'COMM:iTunNORM:eng'                                 (' 00000793 000005BC 00003E55 00004059 0001EF99 0001EF99 00008000 00008000 '
 '0000AAF9 00007D9F')
'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x005\x008\x005\x00C\x00+\x009\x00E\x00E\x00D\x00+\x00D\x009\x002\x004\x00+\x001\x001\x008\x000\x006\x00+\x001\x005\x008\x00C\x00A\x00+\x001\x00C\x001\x005\x00C\x00+\x002\x001\x003\x00C\x000\x00+\x002\x006\x003\x007\x005\x00+\x002\x009\x00D\x00B\x00E\x00+\x002\x00E\x00B\x002\x009\x00+\x003\x003\x008\x00C\x009\x00+\x003\x009\x007\x00E\x00C\x00\x00\x00')
'PRIV:AverageLevel:Ô\x1c\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xd4\x1c\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x008\x006\x007\x004\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x005\x006\x000\x008\x000\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x009\x001\x000\x007\x001\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x008\x006\x007\x004\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x005\x006\x000\x008\x000\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x009\x001\x000\x007\x001\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:°,Ï¢j)FJ\x91Î÷Ë(\x12Zs'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xb0,\xcf\xa2j)FJ\x91\xce\xf7\xcb(\x12Zs')
'PRIV:WM/WMCollectionID:°,Ï¢j)FJ\x91Î÷Ë(\x12Zs'     PRIV(owner='WM/WMCollectionID', data=b'\xb0,\xcf\xa2j)FJ\x91\xce\xf7\xcb(\x12Zs')
"PRIV:WM/WMContentID:\x8bmåÔ-'uG\x83\x83¦\n¨0\x13Z"  PRIV(owner='WM/WMContentID', data=b"\x8bm\xe5\xd4-'uG\x83\x83\xa6\n\xa80\x13Z")
'TALB' (Album/Movie/Show title)                     'LP'
'TBPM' (BPM (beats per minute))                     '90.776'
'TCOM' (Composer)                                   'M. Congleton'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Michigan'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '272066'
'TPE1' (Lead performer(s)/Soloist(s))               'Ambulance Ltd'
'TPE2' (Band/orchestra/accompaniment)               'Ambulance Ltd'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'TVT'
'TRCK' (Track number/Position in set)               '8/12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie rock', 'lovedbygdchill', 'indie', 'rock', 'indie pop', 'alternative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.461657'

========================== row from database ==========================
                                              'id'  1491359
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/ambulance ltd - lp - michigan.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  272
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  6559399
                                           'mtime'  1637330340
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch ambulance ltd lp michigan ifs songwriter indie rock
                                      'tag_artist'  Ambulance Ltd
                                     'tag_release'  LP
                                       'tag_title'  Michigan
                                             'bpm'  90.776
                                    'search_title'  'michigan':1
                                   'search_artist'  'ambulance':1 'ltd':2
                                  'search_release'  'lp':1
                                     'search_rest'  '00dutch':4 '00mid':1 'ambulance':5 'europe':3 'ifs':9 'indie':11 'lp':7 'ltd':6 'michigan':8 'north':2 'rock':12 'songwriter':10
                                    'search_combo'  '00dutch':8 '00mid':5 'ambulance':2B,9 'europe':7 'ifs':13 'indie':15 'lp':4C,11 'ltd':3B,10 'michigan':1A,12 'north':6 'rock':16 'songwriter':14
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie rock', 'lovedbygdchill', 'indie', 'rock', 'indie pop', 'alternative']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330339.6667242  (2021-11-19 14:58:59)
                             'size'  6559399