======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '302'
                                          'artist'  'New Baccara'
                                     'text_people'  ''
                                         'release'  'I Love Disco Diamonds Vol 23'
                                           'title'  'Call Me Up (Spec'
                                           'quals'  ("['Q-HAP-4', '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-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'italo disco', 'spanish', 'female vocalists', 'disco']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '121.628'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'I Love Disco Diamonds Vol 23'
'TBPM' (BPM (beats per minute))                     '121.628'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Call Me Up (Spec'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'New Baccara'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '4'
'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'                                   ['80s', 'italo disco', 'spanish', 'female vocalists', 'disco']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.19 dB'
'TXXX:replaygain_track_peak'                        '0.432790'

========================== row from database ==========================
                                              'id'  1337297
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Latin Lover - I Love/VOL23/New Baccara - Call Me Up (Special DJ Mix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  302
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  4835127
                                           'mtime'  1620609459
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Latin Lover VOL23 (Special DJ Mix) electronic we disco or italo
                                      'tag_artist'  New Baccara
                                     'tag_release'  I Love Disco Diamonds Vol 23
                                       'tag_title'  Call Me Up (Spec
                                             'bpm'  121.628
                                    'search_title'  'call':1 'me':2 'spec':4,5 'up':3
                                   'search_artist'  'baccara':2 'new':1
                                  'search_release'  '23':6 'diamonds':4 'disco':3 'i':1 'love':2 'vol':5
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 'disco':3 'dj':11 'electronic':14 'italo':5 'latin':6 'lover':7 'mix':12,13 'or':16 'special':9,10 'vol23':8 'waves':2 'we':15
                                    'search_combo'  '00disco':17 '00poprockelectronic':14 '23':13C 'baccara':7B 'call':1A 'diamonds':11C 'disco':10C,16 'dj':24 'electronic':27 'i':8C 'italo':18 'latin':19 'love':9C 'lover':20 'me':2A 'mix':25,26 'new':6B 'or':29 'spec':4A,5A 'special':22,23 'up':3A 'vol':12C 'vol23':21 'waves':15 'we':28
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'italo disco', 'spanish', 'female vocalists', 'disco']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620609459.1593494  (2021-05-10 03:17:39)
                             'size'  4835127