======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '151'
                                          'artist'  'The Mountain Goats & John Vanderslice'
                                     'text_people'  ''
                                         'release'  'Moon Colony Bloodbath'
                                           'title'  'Columns Pillars Steps'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '143.112'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 0000014B 00000117 00000BD0 00000C35 00016A58 00016A58 00005BD1 000052FE '
 '00011D68 00011D68')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B11 000000000065A7DF 00000000 00374635 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Moon Colony Bloodbath'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 8.1'
'TIT2' (Title/songname/content description)         'Columns Pillars Steps'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats & John Vanderslice'
'TRCK' (Track number/Position in set)               '6'
'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', 'acoustic', 'lo fi', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.708492'

========================== row from database ==========================
                                              'id'  1253071
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Mountain Goats & John Vanderslice - Mountain Goats & John Vanderslice/Moon Colony Bloodbath/06 columns pillars steps.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  151
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  6346403
                                           'mtime'  1642097896
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 06 columns pillars steps ifs songwriter indie unsorted
                                      'tag_artist'  The Mountain Goats & John Vanderslice
                                     'tag_release'  Moon Colony Bloodbath
                                       'tag_title'  Columns Pillars Steps
                                             'bpm'  143.112
                                    'search_title'  'columns':1 'pillars':2 'steps':3
                                   'search_artist'  'goats':3 'john':4 'mountain':2 'the':1 'vanderslice':5
                                  'search_release'  'bloodbath':3 'colony':2 'moon':1
                                     'search_rest'  '00singer':1 'columns':4 'eos':3 'ifs':7 'indie':8 'pillars':5 'songwriter':2 'steps':6 'unsorted':9
                                    'search_combo'  '00singer':12 'bloodbath':11C 'colony':10C 'columns':1A,15 'eos':14 'goats':6B 'ifs':18 'indie':19 'john':7B 'moon':9C 'mountain':5B 'pillars':2A,16 'songwriter':13 'steps':3A,17 'the':4B 'unsorted':20 'vanderslice':8B
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-4', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'singer songwriter']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642097895.8602386  (2022-01-13 19:18:15)
                             'size'  6346403