======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '608'
                                          'artist'  'SMT001'
                                     'text_people'  ''
                                         'release'  'Smitten Bitten'
                                           'title'  'Lochi / Serious Tangent'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '144.955'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Smitten Bitten'
'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TENC' (Encoded by)                                 'iTunes v5.0.1.4'
'TIT2' (Title/songname/content description)         'Lochi / Serious Tangent'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'SMT001'
'TRCK' (Track number/Position in set)               '9'
'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:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.911645'

========================== row from database ==========================
                                              'id'  1360186
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/09 - lochi - Serious Tangent.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  608
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  12170028
                                           'mtime'  1620572605
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 09 lochi electronic th techno acid
                                      'tag_artist'  SMT001
                                     'tag_release'  Smitten Bitten
                                       'tag_title'  Lochi / Serious Tangent
                                             'bpm'  144.955
                                    'search_title'  'lochi':1 'serious':2 'tangent':3
                                   'search_artist'  'smt001':1
                                  'search_release'  'bitten':2 'smitten':1
                                     'search_rest'  '00poprockelectronic':1 'acid':11 'electronic':8 'files':5,6 'lochi':7 'loose':3,4 'techno':10 'th':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'acid':17 'bitten':6C 'electronic':14 'files':11,12 'lochi':1A,13 'loose':9,10 'serious':2A 'smitten':5C 'smt001':4B 'tangent':3A 'techno':16 'th':15 'unsorted':8
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572604.6736908  (2021-05-09 17:03:24)
                             'size'  12170028