======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '30'
                                          'artist'  'Bruce haack'
                                     'text_people'  ''
                                         'release'  '1968 The way-out record for children [w/ miss nelson]'
                                           'title'  'Introduction'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['11', 'space age pop', 'electronic', 'psychedelic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '122.5'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'vinyl rip'
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000ABC 0000000000146034 00000000 00126635 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     '1968 The way-out record for children [w/ miss nelson]'
'TBPM' (BPM (beats per minute))                     '122.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1968'
'TENC' (Encoded by)                                 'iTunes 10.1.1.4'
'TIT2' (Title/songname/content description)         'Introduction'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bruce haack'
'TRCK' (Track number/Position in set)               '1'
'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'                                   ['11', 'space age pop', 'electronic', 'psychedelic', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.684535'

========================== row from database ==========================
                                              'id'  918900
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Bruce Haack/1968 - Bruce Haack - The Way-Out Record For Children (Dimension 5) [320k]/01 introduction.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  30
                                           'genre'  electronic-experimental
                                        'filesize'  1451573
                                           'mtime'  1636916710
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Haack Haack Way Out Record For Children (Dimension 5) [320k] 01 introduction electronic experimental
                                      'tag_artist'  Bruce haack
                                     'tag_release'  1968 The way-out record for children [w/ miss nelson]
                                       'tag_title'  Introduction
                                             'bpm'  122.5
                                    'search_title'  'introduction':1
                                   'search_artist'  'bruce':1 'haack':2
                                  'search_release'  '1968':1 'children':8 'for':7 'miss':11 'nelson':12,13 'out':4 'record':6 'the':2 'w':9,10 'way':3 'wayout':5
                                     'search_rest'  '320k':11,12 '5':9,10 'children':6 'dimension':7,8 'electronic':14 'experimental':15 'for':5 'haack':1 'introduction':13 'out':3 'record':4 'way':2
                                    'search_combo'  '1968':4C '320k':27,28 '5':25,26 'bruce':2B 'children':11C,22 'dimension':23,24 'electronic':30 'experimental':31 'for':10C,21 'haack':3B,17 'introduction':1A,29 'miss':14C 'nelson':15C,16C 'out':7C,19 'record':9C,20 'the':5C 'w':12C,13C 'way':6C,18 'wayout':8C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['11', 'space age pop', 'electronic', 'psychedelic', 'experimental']
                                        'tag_date'  1968
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916710.345914  (2021-11-14 20:05:10)
                             'size'  1451573