======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '317'
                                          'artist'  'Tim Buckley'
                                     'text_people'  'Tim Buckley'
                                         'release'  'Goodbye And Hello'
                                           'title'  'Pleasant Street'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'psychedelic', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock', 'psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '107.265'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000777 0000075E 00005596 0000558D 00034278 00034278 00006F47 00007D00 '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000870 0000000000E8C380 00000000 00745500 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '10+9E49E3DF4B89FD5C3765510503354F64+902318'
'TALB' (Album/Movie/Show title)                     'Goodbye And Hello'
'TBPM' (BPM (beats per minute))                     '107.265'
'TCOM' (Composer)                                   'Tim Buckley'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1967'
'TENC' (Encoded by)                                 'iTunes 12.4.1.6'
'TIT2' (Title/songname/content description)         'Pleasant Street'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tim Buckley'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'psychedelic rock']
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'psychedelic', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.64 dB'
'TXXX:replaygain_track_peak'                        '0.487190'

========================== row from database ==========================
                                              'id'  1308683
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Goodbye And Hello/03 Pleasant Street.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  317
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  7798610
                                           'mtime'  1637330303
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 03 ifs songwriter indie rock
                                      'tag_artist'  Tim Buckley
                                     'tag_release'  Goodbye And Hello
                                       'tag_title'  Pleasant Street
                                             'bpm'  107.265
                                    'search_title'  'pleasant':1 'street':2
                                   'search_artist'  'buckley':2 'tim':1
                                  'search_release'  'and':2 'goodbye':1 'hello':3
                                     'search_rest'  '00poprockelectronic':1 'ifs':4 'indie':6 'indierock':3 'poprock':2 'rock':7 'songwriter':5
                                    'search_combo'  '00poprockelectronic':8 'and':6C 'buckley':4B 'goodbye':5C 'hello':7C 'ifs':11 'indie':13 'indierock':10 'pleasant':1A 'poprock':9 'rock':14 'songwriter':12 'street':2A 'tim':3B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', '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-2', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'psychedelic', 'folk', 'singer songwriter']
                                        'tag_date'  1967
                                     'discogstags'  ['rock', 'folk rock', 'psychedelic rock']

============================== file details ==============================
                                           'mtime'  1637330302.7262878  (2021-11-19 14:58:22)
                             'size'  7798610