======================== unified (from filesystem) ========================
                                         'bitrate'  '159.662'
                                        'duration'  '276'
                                          'artist'  'Speedy J'
                                     'text_people'  ''
                                         'release'  'g spot'
                                           'title'  'the fun equations'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'techno', 'electronic', 'experimental', 'idm']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '121.994'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'g spot'
'TBPM' (BPM (beats per minute))                     '121.994'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'the fun equations'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Speedy J'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'techno', 'electronic', 'experimental', 'idm']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.760401'

========================== row from database ==========================
                                              'id'  1270705
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Speedy J. - Speedy J/G Spot/Speedy J - The Fun Equations - 01.mp3
                                         'working'  None
                                         'bitrate'  159
                                    'duration_sec'  276
                                           'genre'  electronic-experimental
                                        'filesize'  5528315
                                           'mtime'  1636917017
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm J. G Spot The Fun Equations 01 electronic experimental
                                      'tag_artist'  Speedy J
                                     'tag_release'  g spot
                                       'tag_title'  the fun equations
                                             'bpm'  121.994
                                    'search_title'  'equations':3 'fun':2 'the':1
                                   'search_artist'  'j':2 'speedy':1
                                  'search_release'  'g':1 'spot':2
                                     'search_rest'  'electronic':8 'equations':7 'experimental':9 'fun':6 'g':3 'j':1,2 'spot':4 'the':5
                                    'search_combo'  'electronic':15 'equations':3A,14 'experimental':16 'fun':2A,13 'g':6C,10 'j':5B,8,9 'speedy':4B 'spot':7C,11 'the':1A,12
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3A
                                           '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-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'techno', 'electronic', 'experimental', 'idm']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636917016.9739199  (2021-11-14 20:10:16)
                             'size'  5528315