======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '563'
                                          'artist'  'frank murder'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Whiplash - Eq'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '145.2'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Whiplash - Eq'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'frank murder'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.651598'

========================== row from database ==========================
                                              'id'  858079
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/frank_murder/Whiplash - Eq-220239856.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  563
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  9017497
                                           'mtime'  1621084983
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud frank_murder 220239856 electronic th techno minimal or deephouse
                                      'tag_artist'  frank murder
                                     'tag_release'  None
                                       'tag_title'  Whiplash - Eq
                                             'bpm'  145.2
                                    'search_title'  'eq':2 'whiplash':1
                                   'search_artist'  'frank':1 'murder':2
                                  'search_release'  
                                     'search_rest'  '220239856':4 'deephouse':10 'electronic':5 'frank':2 'minimal':8 'murder':3 'or':9 'soundcloud':1 'techno':7 'th':6
                                    'search_combo'  '220239856':8 'deephouse':14 'electronic':9 'eq':2A 'frank':3B,6 'minimal':12 'murder':4B,7 'or':13 'soundcloud':5 'techno':11 'th':10 'whiplash':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['icelandic', 'idm', 'electronic', '77davez artists', 'experimental']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621084983.4422572  (2021-05-15 15:23:03)
                             'size'  9017497