======================== unified (from filesystem) ========================
                                         'bitrate'  '130.409'
                                        'duration'  '398'
                                          'artist'  'Biosphere'
                                     'text_people'  ''
                                         'release'  'Biosystems-The Biosphere Remix'
                                           'title'  'Circuitry - Front Line Assembl'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'chillout', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '134.645'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ', AG# 00000000'
'TALB' (Album/Movie/Show title)                     'Biosystems-The Biosphere Remix'
'TBPM' (BPM (beats per minute))                     '134.645'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Circuitry - Front Line Assembl'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Biosphere'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'chillout', 'experimental', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.92 dB'
'TXXX:replaygain_track_peak'                        '0.975824'

========================== row from database ==========================
                                              'id'  150905
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Biosphere, Bleep/Biosphere/1999 - Biosystems - The Biosphere Remixes - VBR160/biosphere-05-front.line.assembly-circuitry-rmx.by.biosphere.mp3
                                         'working'  None
                                         'bitrate'  130
                                    'duration_sec'  398
                                           'genre'  electronic-ambient
                                        'filesize'  6494200
                                           'mtime'  1636909899
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Biosphere, Bleep 1999 Remixes VBR160 biosphere 05 front.line.assembly circuitry rmx.by.biosphere electronic ambient
                                      'tag_artist'  Biosphere
                                     'tag_release'  Biosystems-The Biosphere Remix
                                       'tag_title'  Circuitry - Front Line Assembl
                                             'bpm'  134.645
                                    'search_title'  'assembl':4 'circuitry':1 'front':2 'line':3
                                   'search_artist'  'biosphere':1
                                  'search_release'  'biosphere':4 'biosystems':1 'biosystemsthe':3 'remix':5 'the':2
                                     'search_rest'  '1999':4 'ambient':17 'assembly':9 'biosphere':1,2,14 'bleep':3 'by':13 'circuitry':11 'electronic':16 'front':7 'frontlineassembly':10 'line':8 'remixes':5 'rmx':12 'rmxbybiosphere':15 'vbr160':6
                                    'search_combo'  '1999':14 'ambient':27 'assembl':4A 'assembly':19 'biosphere':5B,9C,11,12,24 'biosystems':6C 'biosystemsthe':8C 'bleep':13 'by':23 'circuitry':1A,21 'electronic':26 'front':2A,17 'frontlineassembly':20 'line':3A,18 'remix':10C 'remixes':15 'rmx':22 'rmxbybiosphere':25 'the':7C 'vbr160':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'chillout', 'experimental', 'ambient']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636909899.1512506  (2021-11-14 18:11:39)
                             'size'  6494200